Eyeleting-machine.



H. W. KENWAY.

EYELETING, MACHINE.

' APPLICATION FILED SEPT. 1. 1914.

1 ,2? 1,720. Patented July 9, 1918.

MT/VES'SES W314, & fla wyf HERBERT W. KENWAY, OF NEWTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, '10 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

EYELETING-MAGHINE.

Specification of Letters Patent. 1

Patented July 9, 1918.

7 Application filed September 1, 1914. Serial No. 859,632

To all whom it may concern:

Be it known that I, HERBERT W. KENWAY, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Eyeleting-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. I

This invention relates to improvements in machines for setting eyelets or similar fastening devices, and particularly to machines for setting blind or invisible eyelets.

Heretofore in setting invisible eyelets it has been the practice to utilize an upsetting die which has been forced through the hole in the outer or leather part of the upper into such position between the two parts that the end of an eyelet barrel inserted through the lining part is clenched upon the covered surface of the lining. This has necessitated a hole 1n the outer part of the upper at least as large as the eyelet barrel and even a hole of such diameter has been more or less stretched and distorted by the forcing through it of the upsetting die which is necessarily of greater diameter than the eyelet barrel. In boots and shoes of many styles it is desired to make in the outer part of the upper holes of diameter substantially less than the diameter of the eyelet barrel, but with the setting tools heretofore known this has been impossible. An important object of the present invention is to provide an eyelet setting machine by which the difiiculties above discussed may be avoided and which will permit the setting of blind or invisible eyelets beneath a hole'of smaller diameter than heretofore. This result is effected, in accordance with the embodiment of the invention herein shown, by utilizing an expansible upsetting die which may be introduced through one part of the upper in a contracted condition in which its diameter is smaller than the inner diameter of 'the' eyelet barrel, and then expanded sufiiciently to clench the eyelet barrel when the latter is forced against it.

The expansible upsetting die may be inserted either through the hole in the lining part or thronghthe hole in the outer part of the machine.

ranged to be carried by the eyelet inserting set and passed through the lining part from the same side that the eyelet is inserted. This construction is believed to be broadly novel regardless of how the upsetting die is inserted and While it is particularly advantageous in connection with a machine for setting blind or invisible eyelets its use is not limited to this class of work but has a broader application. When the upsetting die is arranged to be carried by the eyelet inserting set it may also have the function of the usual center spindle which picks the eyelet from the raceway and holds it in position during the inserting operation. Any desired means may be employed for expanding the upsetting die after it has entered the Work, but as herein shown the feeding tool is utilized for this function. Such arrangement constitutes another important feature of the invention and is dvantageous in that it offers convenient and satisfactory mechanical means for expanding the upsetting die without introducing additional mechanism .into the organization As herein shown the feeding tool is arranged to be inserted in a previously punched hole in the upper and to be retracted sufficiently to disengage the llning part when the upsetting die is brought into engagement with the feeding tool prior to the setting operation.

Still another feature of the invention relates to the construction of the upsetting die itself which, as herein shown, is comprised 'of a plurality of complementary sections.

object of this construction is that the die may be assembled with no space between its sections and consequently there Wlll be only a slight and unobjectionable separatlon of the sections when the setting die is expanded.

Other features of the invention relate to a novel arrangement of the eyelet presenting and upsetting dies whereinthese are both initially located upon the same side of thepart of the work in which the eyelet is to be set and the upsetting die is moved through only that portion of the work in which the y l t is to e set, In the illustrated construction, thepunching and feeding tools are locatel on the opposite side of the work from the tools for inserting and clenching the eyelet.

These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and' shown in the accompanying drawings in which,

Figure 1 is a view in perspective of so much of an eyeleting machine as is necessary to understand the present invention;

Fig. 2 is a view in perspective on an enlarged scale of the feeding and setting tools;

Fig. 3 is a view in front elevation, partly in section, of the parts shown in Fig. 1; and

Figs. 4 and 5 are sectional views showing the setting tools in different positions.

In the accompanying drawings the invention is illustrated as embodied in the wellknown Universal eyeleting machine, but it will be apparent that any other eyeleting machine would do as well.

The machine frame 2 is provided with vertical journals for the plunger 4 which carries the eyelet inserting set 6 and the expansible {of the usual centerspindle.

upsetting die 8. A stationary work plate 10 is secured to the machine frame and is cut away to permit the passage of the setting and punching tools. The frame also carries a swinging head 12 in which is mounted an oscillating feeding lever 14. At one side of the lever 14' is a second lever 16 which carries a punch 18 arranged to cooperate with a punching die 20 disposed beneath it in a slot in the work table 10. A presser foot 22 of the usual construction is provided to hold the work stationary between the feeding steps. The actuating mechanism for the various tools is not herein illustrated as it forms no part of the present invention and may well be of similarv construction to the corresponding, mechanism of the Universal eyeleting machine.

The eyelet carrying set 6 is of the usual construction, being properly shaped at its upper end to fit the flange of the eyelets to be inserted. As shown in Fig. 3, it is adjustably retained in the upper end of the plunger 4. The expansible upsetting die '8 is mounted in a bore in the set 6 in place It comprises three sections as shown in Fig. 2, each of which forms 120 of its circumference. The sections are shouldered at their lowe ends to fit upon the upper end of a pin24'and are bound together and to the pin by a band 26. At its lower end the pin 24 rests upon a compression spring 25 contained in a recess in the plunger 4. In making the upsetting die its parts are firmly bound in place and then brazed or sweated together. The sections of the upsetting die are of resilient nature and are so shaped as to be normally flat and of a diameter slightly less than the inner diameter of the eyelets to be set. Immediately beneath its upper end the upsetting die is reduced in diameter, its surface being curved so as to form an upsetting surface 28 facing toward the eyelet inserting set 6. The inner corner of each section 15 beveled off so that a central depression 30 is formed in the upper surface' As shownin Fig. 3 the upsetting die 8 is' arranged to be passed through the hole in the lining'part 50 of the upperin its normal or contracted condition and in this condition the diameter of its upper end is slightly less than the diameter of the hole in the work.

The feeding tool 32 is mounted in the forward end of the lever 14 and provided at its lower end with a conical expanding projec-. tion 34 shaped to enter the depression 30 in the upsetting die and expand the sections thereof. The plunger 32 is secured to the lower end of a stem 36 which extends up wardly through the lever 14 where it is provided with a pair of adjustable set-nuts 40 by which-the initial position of the tool in the leather may be regulated. The lever 14 is chambered at its lower end to receive the plunger 32 and is counter-bored above the chamber to receive a compression spring 38 arranged to bear upon the upper end of the plunger and hold it in its lower or normal position. In its normal position the upper end of the plunger 32 stands below the seat of its chamber by a distance equal substantially to the thickness of the material in which the eyelet is set and when it is engaged by the upsetting die as shown in Fig. 3 it 5 is forced upwardly until its seat is encountered and thus retracted from thelowermost layer or layers of material. After the upward movement of the plunger 32 is arrested,, however, the continued upward movement of the upsetting die 8 forces the upper ends of its resilient sections against the conical projection 34 and so effects the expansion of the die as a whole.

The operative or retractedposition of the die expanding plunger'32 is positively determined by its engagement with the annular shoulder forming itsseat. The upsetting die in its upward movement is advancedby the compression spring 25 which consequently serves to limit the pressure exerted between the upsetting die and thedie expanding plunger 32. This arrangement is of importance in view of the delicate construction of the upsetting die which renders it likely to be broken if subjected to a pressure of more than a moderate amount.

In operating the machineherein described the work is placed upon the table 10 with the point at which the first eyelet is to be toward the left whereupon the hole in the i work is moved into alinement with the path of the setting tool. The plunger 4 is then elevated and the end of the upsetting die 8- passes into the hole in the work forcing the feeding tool 32 upwardly out of the lining part 50 and then being expanded as shown in Fig. 4 and brought to rest with its upsetting surface just beneath the uppermost part 60 of the work. The continued upward movement of the plunger 4 elevates the eyelet inserting set 6 which carries the eyelet upwardly upon the upsetting die 8, inserting its barrel through the part 50 of the work and forcing it against the upsetting surface 28 by which it is clenched upon the covered surface of the lining. The plunger 4 then moves downwardly and simultaneously the lever 14 is elevated moving the expanding projection 34 upwardly and thus permitting the sections of the upsetting die to resume their normal contracted position. This condition is illustrated in Fig. 5 from which it will be seen that the upsetting die may now L be lowered and withdrawn from the work through the barrel of the clenched eyelet.

While the present invention has been descrlbed in connection with the operation of inserting blind or invisible eyelets, it possesses many novel structural features which may have useful application in machines for setting eyelets or other tubular fasteners in the regular manner or in work of various different kinds.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 2-- 1. In an eyeletting machine, an expansible upsetting die, and a cooperating eyelet carrying set movable to present an eyelet to said die after the die has been expanded.

2. In an eyeleting machine, an expansible upsetting die, and means for expanding the die prior to the setting operation, said die being constructed and arranged to be automatically returned to its contracted condition when released from the action of the expanding means, without regard to the action of gravity.

3. In; an eyeleting machine, an expansible upsetting die, and means for completely expanding the die after it has been passed into a hole in the work and prior to 4. In an eyeleting machine, an expansible be set.

upsetting die comprising a plurality of resilient sections, constructed and arranged so that their resiliency tends to maintain the operative portions 1n contracted positlon.

5. In an eyeleting machine, an expansible upsettingdie comprising a plurality of relatively movable sections constructed and arranged to be normally self-contracting without regard to the action of gravity, and means for positively separating the sections.

6. In an eyeleting machine, an eyelet inserting set mounted for reciprocation, and an expansible upsetting die carried thereby.

7. In an eyeleting machine, an eyelet inserting set mounted for reciprocation toward one side of the work, and an upsetting die initially located on the same side of that portion of the work in which the eyelet is to 8. In an eyeleting machine, a frame, a

work support mounted thereon, and an eyemounted for movement with relation to the work support, said set and die being relatively movable in a direction longitudinally of the eyelet to be set and being both initially located on the same side of that portion of the work in which the eyelet is be set as the support.

9. In an eyeleting machine, an expansible upsetting die, and a combined work feeding and die expanding member.

10. In an eyeleting machine, a punch, a feed member arranged to enter the punched hole, and an expansible upsetting die ar- Iganged to be expanded by the feeding memer. v

11. In an eyeleting machine, means located on one side of the work forpunching and feeding the same, and means located initially on the other side of that portion of the work in which the eyelet is to be set constructed and arranged for both inserting and clenching an eyelet. p

12. In an eyeleting machlne, an eyelet 1nserting set, and an upsetting d1e 1n1t1ally located on one side of that ortion of the Work in which the eyelet is to e set and movable to the other'side of said portion of the work prior to the setting operation and in timed relation to the set. 13. In an eyeleting machine, eyelet setting' tools mounted for relative movement in timed relation, one of said tools being movable in a predetermined path from one side to the other of that portion of the work in which the eyelet is to be set.

14. In. an eyeleting machine, eyelet setthe other of said tools being thereupon moved to efiect the clenching operation.

15, 1.1.1 a eyeleting machine, eyele settmg tools, and mechanism for efiec'tin relative movement of said tools organize to move one of said tools previously to the insertion of the eyelet to be set through only that portion of the work in which the eyelet is to be set.

16. In an eyeleting machine, a work support, eyelet setting tools including an expansible upsetting die movable through a portion of the work upon the support in an unexpanded condition and being arranged for expansion after it has passed through the work.

17. Inan eyeleting machine, a work feeding member constructed and arranged to be inserted in the work preparatoryto the feeding operation, and means for moving the tool to withdraw it partially but not wholly from the work at the conclusion of the feeding operation and prior to the setting operation.

tools, and a feeding member constructed and arranged for a limited retractive movement in response to pressure of one of the setting tools. 7

19. In an eyeleting machine, an expansible die, means for expanding the die, and means for limiting the pressure between the die and the die-expanding member.

20. In an eyeleting machine, a punch for perforating both the outer and lining parts of an upper, a feeding tool for entering the hole so formed by said punch, anexpansible upsetting die movable through the lining part and arranged'to retract the feeding tool, and an eyelet inserting set.

21. In an eyeleting machine, an eyelet inserting diehaving a spindle centrally located and shaped at its end to constitute an upsetting die.

22. In an eyeleting machine, an eyelet inserting die, an upsetting die movable therewith, means for moving the eyelet inserting die toward the work to enter the upsetting die therein, and means for arresting the movement of the upsetting die in the work while the movement f the inserting die contlnues. I

23. In an eyeleting machine, a frame, a

- plunger mounted in bearings in said frame for reciprocation in a predetermined path with respect to the machine, an eyelet inserting die carried by said plunger and arranged to insert an eyelet in the work, and an upsetting die also carried by said plunger and arranged to cooperate with the inserting die to upset an eyelet inserted in the work.

24. In an eyeleting machine, a reciproca- 1 tory plunger, relatively movable inserting and upsettlng dies carried thereby, and

18. In an eyeleting machine, eyelet setting means for arresting the movement of one of the dies before the other.

25. In an eyeleting machine, an expansible die, a die-expanding member, a movable car- 'rler for said member, and means for ad ustraceway, an eyelet inserting set, and an expansible spindle carried thereby arranged .to thread an eyelet in the raceway and deliver it to the inserting set, said spindle having formed upon its end a concave annular upsetting surface disposed away from the end of the spindle.

' 27. An eyeleting machine, having, in combination, an eyelet inserting set, a raceway for supplying eyelets, and'a tool constructed and arranged first to pick an eyelet from the raceway and then clench the end of the eyelet barrel.

28. A machine for setting invisible eyelets, having, in combination, a punch for perforating the outer and lining portions of an upper, an expansible upsetting die arranged to be inserted through the hole in one portion of the upper and then expanded, and a set for forcing an eyelet against the expanded die.

29. A machine for setting invisible eyelets, having, in combination, a punch, an expansible upsetting die arranged to be inserted through one of two parts of an upper perforated by the punch, and a die expanding member mounted independently of the expansible die.

30. In an eyeleting-machine, an eXpansible upsetting die, said die being normally contracted so as to be passed through a hole in one layer of the work which is smaller than the ultimate size of the upsetting surface of the expanded die, and means for passing an eyelet through one layer of the work and forcibly presenting the same against the upsetting surface of said die to thereby upset it upon a part of the layers of the work.

31. Inan eyeleting machine, an'eXpansible upsetting die arranged to be interposed between the layers of the work and then expanded toprovide an enlarged upsetting In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses.

-HERBERT W. KENWAY. Witnesses:

NORMAN C. HUssEY, ARTHUR L. RUssELL. 

